Sash pulley



J. LUTON SASH PULLEY March 13, 1934.

Filed Jan. 25, 1932 NVENTOR. T0/1 n L L( ton,

ATT N Y.

Sign lll-ll I llllll/ll/l//fM p 40 the window 1.

Patented Mar. 13, 1934 UNIT STATES PATENT* orio SASH PULLEY John Luton,Cleveland Heights, Ohio application January 26, 1932, Serial No. 588,947

6 Claims.

This invention relates to novel constructions and arrangements of pulleysystems for supporting sash weights for use with windows.

It is an object of this invention to provide a system of pulleys adaptedfor use either with single windows or with multiple windows.

Another object of the invention is to provide such a system of pulleysas is adaptable for use with one or a plurality of windows and which is19 suiliciently flexible in its construction that it will adapt itselfin varying conditions of window construction.

Still another object of the invention is to provde a system of pulleysseparable into two parts,

one ol which may he used as a standard con struction of pulley systemwith single and double windows, and the other part oi the system beingattachable to the standard part in order to create a multiple systemadapted ior triple or r() multiple windows.

Other objects and advantages of the invention will appear `in thefollowing description taken in connection with the accompanying drawingin which:

Fig. 1 is a View in elevation, broken away, showing the installation ofthe pulley systems of this invention;

Fig. 2 is a detail View of the pulley system;

Fig. 3 is a cross-sectional view taken on the line 3--3 of Fig. 2;

Fig. 4 is a cross-sectional View taken on line 4-4 of Fig. 3.

Referring to Fig. 1, I have shown at l windows adapted to slide in awindow casing 2 which provided with a space 3 adapted to receive windowsash weights 4 and 5. The said Window sash weights 5 are suspended fromchains 6 which pass over pulleys 'i of standard construction and which.are aixed as is indicated at 9 and 10 to An auxiliary pulley 11 isprovided over which one ci the chains e is trained.

The construction thus far described is oi a conventional type adaptedfor use with single and/or double windows. Where there are three or morewindows in a row in a window casing, it becomes necessary to providesash weights for the central windows, and since it is often inconvenientto place them in the spaces between Windows, it is often desirable toplace them at the end of the window casing in such space as is indicatedat 3 in 1 of the drawing. Aecordingly, an auxiliary pulley 13 isprovided over lwhich the chain connected to the sash weight 4 istrained, the chain 14 running over the pulley A 15 and being connectedto the window 1 as indicated at 16. The pulley 15 is of conventionalconstruction.

Said auxiliary pulley 13`is usually arranged in an inaccessible place inthe window casing and accordingly cannot be secured down by screws as 5Gis done with other pulleys. Accordingly, in the past it has beencustomary to make the pulley 13 an integral part of the pulley l so thatthe securing oi the pulley 'i in place serves to secure the pulley 13Vin place at the same time. 'ii-low 65 ever, this necessitates the use oftwo pulley constructions which involves some duplication. That is, whenthe pulley 'l and 13 are made integral, it is necessary in the interestsof economy to provide a separate unit of the pulley 7 70 to be used inthe single and double window constructions. This involves theduplication of the pulley 7 in the two pulley systems.

According to my invention, the pulley 13 is made separable from thepulley 7 so that the 75 pulley 7 is made as a standard construction forwindows of any number. Thus, the pulley 'i may be used alone for thedouble window construction and, when necessary, the pulley 13 can becombined with the pulley 7 in order to adapt the 80 system of pulleysfor use with triple or more windows.

In order that the pulleys 7 and 13 may be conveniently united, thepulley 7 is provided with a curved integral extension 1'7 formed to 85provide a channel 18 in which the tongue 19 of the frame of pulley 13may ride. Said frame is also provided with a depending ilange 20 adaptedto rest upon the frame of the window casing when the pulley 13 is inoperative posi- 9o tion. The nature of the connection between the pulley7 and the pulley 13, formed by the curved channel 18 and tongue 19,permits the pulley 13 to turn about an axis and adjust itself to theirregularities of the Window casing upon which the flange bottom 2Q mayrest. Thus a self-adjusting connection is afforded between the pulleys 7and 13 which renders it easy to insert the pulley 13 into place and,when in place, to arrange itself, without further at- 100 tention inoperating position, the pulley 7 when fastened to said casing servingthrough the inter-connection between the pulleys 7 and 13 to secure thepulley 13 in place. The nature oi the connection between pulleys '7 and13 is '105 such that they may be readily assembled without the use ofadditional parts or tools. Thus, the pulley '7 may be made as a standardpart for use with all kinds of windows and when it is desired to use thearrangement oi window 4110 sash weights shown in Fig. 1, the pulley 13is attached to the pulley 7 as shown diagrammatically in Fig. 2, by theworkman with the greatest of facility. Said workman when desiring to usethe pulley 7 in a triple or more multiple window arrangement, has onlyto unite the pulley 13 to the pulley 'l as shown in Fig. 2 by means ofthe channel of the pulley frame '7 and the tongue vof the pulley Aframe13 to form an integral member, which member may be then grasped by theworkman at the thin handle portion 21 to project its tip portion 22 atan approximate right angle to the top 423 of the window casing 2 andthrough an elongated perforation 24 thereof and to rotate and projectthe same over said casing to a position such as is l.shown by the member`13 `in Fig. l. The workman by fastening the screw 12 has now securedthe said integral member in its operative position.

It will be noted that the pulley 13 represents the only additional partnecessary in order to provide pulley systems for multiple windowconstructions having 'the sash weights at the end of 'the windowcasing', which results in a reduced manufacturing cost and at the sametime aiord's a better type of pulley unit for such use.

Alaing described, by way Yoi illustration, a particular embodiment of myinvention, upon which many modifications may be made without departingfrom the spirit and scope of the invention what I desire to claim as myinvention is as follows:

l. In a sash chain pulley construction a Iirst and a second pulleyframe, a pulley rotatably supported 'in each frame, the frames beingconnected 'together by sliding connection means to permit adjustment ofthe position of the second 'frame relative to the vfirst 'frame on anarcuate path of movement concave toward the first frame pulley axis.

2. In a 'sash vchain pulley construction a iirst and a second pulleyframe, a pulley rotatably supported in each frame, the frames beingconnected 'together by sliding connection means to permit adjustment ofthe position of the second frame relative to the iirst frame, the rstiframe having a chain guarddisposed adjacent to 'and above 'its .pulleyand the second frame pulley disposed to receive thereon ka pulley chaindisposed 'outwardly 'of the said guard.

3. In a sash chain pulley construction, a pulley frame having means tosecure it to a window frame and rotatably supporting the chain pulley, aportion of the frame formed to make arcuate sliding connection with amating auxiliary pulley frame to permit relative position adjustment ofthe auxiliary frame on an arcuate path concave toward the pulley axis.

4. In a sash chain pulley construction, a pulley ir-ame rotatablysupporting a chain pulley, a portion of the frame formed to make arcuatesliding connection with a supporting main pulley frame to permitrelative position adjust- Anient of the frame relative to the main frameon an arcuate path convex toward the pulley axis.

5. In a sash chain pulley construction, a first and a second pulleyframe, a pulley rotatably supported in each frame, the frames beingconnected together by connection means to permit ver-tical -adjustmentof the position of the second frame relative to the first frame, thesecond frame pulley being disposed to receive thereon a pulley chaindisposed above said rst frame pulley and stop means associated with saidconnection means to -limit downward movement of the second frame wherebythe upper portion of the second frame pulley is maintained above theupper portion of the first frame and pulley in the zone of a pulleychain received by said second frame pulley.

6. In a sash chain pulley construction, a iirst and a second pulleyframe, a pulley rotatably supported in each vframe, the frames beingconnected together by connection mea-ns to permit vertical vadjustmentof the second frame relative to the first frame, the vfirst frame havinga chain guard disposed adjacent to and above its pulley, the secondframe pulley being disposed to receive thereon a pulleyl chain disposedoutwardly of said guard, and stop means associated with said connectionmeans to limit downward movement of the second frame relative to theiirst frame whereby the upper portion of the second frame pulley ismaintained above the upper portion of the iirst frame pulley and chainguard in the zone of a pulley chai-n received by said second framepulley.

JOHN LUTON.

